@pinij GoogleTTS.apk was not compiled into the system. You can try installing Google TTS in the Google App Store. And provide me with feedback on the results, perhaps adding the next version. Alternatively, you can tell me the verification method and I will verify it on my end.
@goenjoy
I install google assistant in my VIM4 device.
google assistant have Speak To Text , Text To Speaker output.
But I use TextToSpeech library (TextToSpeech | Android Developers)
write a apk.
this Text To Speech apk can work in VIM3 , but can not work in VIM4.
VIM4 show “TTS Initialization Failed”
I use play store text reader apk
This apk install in VIM3 have TTS output.
This apk install in VIM4 but no TTS output.
@goenjoy
Thanks.
I find a method can enable Text to speech.
I use chrome download “Speech Recognition & Synthesis” file , then install it in VIM4.
Then do below setting
Setting → system → Languages & input ->Text-to-speech output → Preferred engine
VIM4 reboot.
The TTS can output.